Textile spindle mounting



Feb 21, 1950 H. GLEITZ ETAL 2,497,881

TEXTILE SPINDLE MOUNTING Filed March 29, 1947 2 Sheds-Sheet l HERBERT QLEWZ CHARLEs E; MMER BY Wa I TTOENEY Feb. 21, 1950 H. GLEITZ ETAL 2,497,881

TEXTILE SPINDLE MOUNTING Filed March 29, 1947 2 Sheets-Sheet 2 INVENTORS HER$ERT Cugwz. Caaauas E. MuLER TTORNEY Patented Feb. 21, 1950 TEXTILE SPINDLE MOUNTING Herbert Gleitz, Euclid, and Charles E. Miller, East Cleveland, Ohio, assignors to The Marquette Metal Products Company, Cleveland, Ohio, a

corporation of Ohio Application March 29, 1947, Serial No. 738,022

9 Claims.

The invention relates to a mounting for textile mill spindles, and particularly to an improved mechanism for movably supporting a spindle assembly on a spinning or twisting machine frame or spindle rail thereof. An object is to provide a simple, efficient and wear-resisting mechanism costly to manufacture; are subject to twisting forces causing wear on the mounting supports and resulting unsteady operation of the spindles; and the swinging movement of the spindles out of and back to driven positions frequently interferes with the separators or guards customarily placed around each spindle assembly or between adjacent spindles to prevent fouling of the strand being wound on or off the bobbins.

Our application Serial No. 686,986, filed July 29, 1946, now Patent 2,433,987, issued January 6,

1948, shows an adjustable spindle mounting of the same type as the-mounting hereof, namely a type in which the spindle is carried on a slide for rectilinear movement toward and away from the spindle-driving band. Specific objects hereof include provision of a more easily and quickly operable spindle-slide-moving and latching mechanism; a lighter weight and more simply constructed mounting bracket for the slide; a rugged bracket, slide and. latch mechanism capable of being made principally from a few easily manufactured and assembled sheet metal parts, a simplified means for adjustably securing the bracket on a spindle rail so that the spindle can easily be caused to operate on a vertical axis notwithstanding 2. limited amount of malformation or misalignment of the supporting rail bars; a simpler and more efiicient spring mechanism for urging the spindle slide into active position with respect to the driving band, and an anchor device for one end of the spring, which anchor also serves as a key in cooperation with a shoulder on the spindle bolster case to enable holding of the latter against being turned on its vertical axis as during assembly onto the mounting or during operation to support the bobbins.

A further object is to provide a means enabling extremely free movement of the spindle mounting slide on its support, so that lubricant either need not be used or can be used only sparingly and so that the return spring force need only be sufficient to maintain the spindle whorl in operative contact with the driving band.

Qther objects and features of the invention will become apparent from the following description of the preferred form shown in the accompanying drawings, wherein:

Fig. 1 is a plan view of the mounting mechanism and small portions of the upper bar of a conventional spindle rail;

Fig. 2 is an assembly view principally in central vertical longitudinal section as indicated on Fig. 1, showing the mounting mechanism and the lower portions of a spindle assembly carried thereon;

Fig. 3 is a transverse sectional view as indicated on Fig. 2 of the spindle mounting slide and bracket; and

Fig. 4 is a fragmentary plan view of a free end portion of the slide supporting bracket.

Fig. 1 illustrates the spindle assembly A in driven position with respect to the driving band B, partially shown.

In most spinning and twisting machines, a mounting rail for each row of spindles extends parallel to the common or principal vertical plane of the spindles and parallel to the longitudinal axis of the driving band as guided for frictional engagement with the spindles of that row. As shown herein, the spindle rail or rail assembly R is in the form of a pair of vertically aligned stiff hollow bars S and T, suitably rigidly mounted on the machine frame by means not shown hereby.

The present bracket arrangement is especially 7 adapted for support by such vertically spaced rail bars, and the spindles can readily be brought into absolutely plumb or truly vertical position thereon, notwithstanding expected inaccuracies in mounting the bars on the machine frame or distortion or misplacement of the bars due to hard usage. The mounting may be appropriately modified for adaptation to other types of spindle rail or rail assemblies.

The spindle mounting comprises, as shown, a rigid T-shaped bracket 5 including a top plate or slide support 6, in the form of a channel with a web 6' and downturned longitudinal flanges B, and a bolster assembly comprising inverted L-shaped metal parts 8 and 9 (angle sections) secured rigidly together back-to-back and to the slide plate 6. The bracket-forming parts 8 and 9 are bent at right an les from high strength The set-,screW-receiving openings sheet or plate on fairly generous radii (see Fig. 2 at L) to provide co-planar supporting arms 8a and 9a extending oppositely of each other and nesting between the flanges 6" of the top plate or slide 6. The legs or back-to-back portions 8b and 9b of the bracket parts 8 and 9, when rigidly securedtogether as by spot welding, form, in effect, a single integral post for supporting the necessary clamping and adjusting means, described means, described below, for attaching the bracket against co-planar face'portionsof the spindle rails S and T. The hollowtriangularly braced construction (at radii Li) formed by rigidly joining the two members}; andfi to the slide plate 7 B insures rigidity at the region of the bracket where the most severe bending stresses are concentrated in event the top of "the spindle blade or a bobbin thereon is pushed or pulled generally horizontally by the operator.

P O Pmv de aba i a hm t betw e th jj shapedbolstei' provided by 'the'bracket parts 8 and 9 andjthe slide plate 6, a pair of dowel openings I!) are, punched in the arm 9a and complementary similarly positioned dowel projections I I are formed as a coining operation in the slide i L plate. The dolweling enables spot welding (or brazing or the like) for attachment of the arm 9d to the under sideof the slide plate without having to use a jig to hold the parts'in' proper relationship. The angle 8 requires no 'doweling' or jig since it is adequately [located (for welding to the adjacentparts'eand 9) by nesting between 1 the top plate flanges Eff. and by face-to-face contactwiththe lleg The legs 81), 9b of the bracket post have upper and lower threaded openings l2 and Hot formed therein adapted to receive set screws for engagement with the spindle rai l tubes. The openings for receiving the screw threads are punched intothe parts 811 and jib before assembly and the tapping after as s bly. U al y on y a n l Set w. '3 is necessary and that may occ py e e ope ine. e; aq pen e; Haas. l u t a e riei c amping plate M on the opposite sidefi t ra tu has a central indented portion I4 fitting par- 1 tiallybetween the rail bars Sand T and a.cent open n to rec e theclam i sb t l ,fl head and nut of the bolt forcethebracket post andi clamping plate againstthe rail bars; The

bolt I51 passes through an elongated opening [6 f in the post so that the bracket may be raised'and lowered as required to accommodate rail bars differently spaced apart.

l2 and [2a of the bracket post are in vertical alignment with i the elongated opening or slot It as shown on Fig. 3; and, on each side of the common plane of alignment of said openings, the channel 6 and arm portion 9a carry threaded openings for set.

screws as at I! located directly above the rail bars. One set screw I! is ordinarily sufiicient to ,hold the bracket in leveled position in the common vertical plane otthe rail bars. In case the upper rail is inclined,.suchjjsingle screw 11 is placed on the down-hill side of the bracket 5 with reference to the longitudinal center thereof.

' Thus the flange 6" (and/or under side 'margin of bracket portion 9a) oppositethe so-positioned set screw I! establishes a fixed fulcrum, about .which the bracket is leveled ingsaid plane. Leveling in 'a vertical plane transversely cutting the railbars is a matter of applying the set screw l3 in one or the other of the openings l2 orl2a, i hevenwi l c m ew fi o a v t lv alignment of the rail bars. If the rail bars are in vertical alignment and the top bar S is level it is then unnecessary to seat any of the set screws because the fiat faces of part 9 of the bracket establish the necessary arrangement of leveling contact points on the spindle rail as a whole. v N,

The sliding support for the spindle is shown 2 in the form of a sheet metal body of generally C-shaped cross section (see Fig. 3) for slidably fitting the outer free end portion l of the main supporting channel 6 of the mounting bracket.

I The inner defining walls of the slide 20 are substantially rectangular in form but the four inner corner regions are necessarily rounded in making the" mounting slide of sheet metal.

Therefore the matching corner regions of the channel 6 are "chamferedKor'rounded on larger radii) to avoid 7 binding of the slide on the channel. The web 2|, downwardly extending side walls 22 and inwardly turned flanges 23 of the slide fit respective surfaces of the channel 6 snugly enough so that the spindle carried on the slide will not tend V 'to vibrate the slide on the bracket when the spindle carries an unbalanced load. I

The use of lubricant between relatively telescoping surfaces of the slide 20 and channel 6 is'kept at a minimum by forming obliquely extending narrow grooves 24 in the otherwise fiat top surface of the bracketa rm portionlas shown for example in Fig. 4 (cf. Fig. 3). Preferably the grooves extend in relatively crossed oblique arrangement providing alternately raised and recessed surface'effects. The grooves may be charged occasionally with asmall amount of lubricant for distribution'tdthe areas of sliding contact between the slide 20 and the bracket.

' The principal function of the grooves is inditravel of the'spindle supporting slide (e. g.) if disposed-beyond the slide at either end of its movement. The grooves can be formed'as a coining operation, forexample by-ribs on one of a pair of dies used for a final flattening operation on the web of the channel 6. The feature described in this'paragr'aph is the invention of 'John"Kermit' Cochran and is disclosed and claimed in his" application Serial No, 40,202,- filed July 23, 1948, entitled'Tex'tile spindle slideniount- "Between the ends of'the top panel' orf web 2| of the 'slide 20 the same; hasjan opening 25*for receiving the lower end rtion'of' the bolster case of the spindle A; If the spindle is to be tiltably mounted,thefbolster case does not fit the opening 26. Thus the entire spindle'assembly maybe tilted on the supporting slide during manipulation of the bobbin'car'ried on thespinp, dle. The bolster case has a rigid mounting flange 28, the'bottom side of which rests on'tha'pad provided by the'top'face of the slide. Incase it is desired thatthe spindle b-e tiltabl mounted,

0 the attaching nut 30 of thebolstercas'e supports the lower end of a relatively stiff coil spring 3| and the upper end of the spring extends freely through an enlarged and preferably elongated 996 in ih We 6filih' b c e i e 6 into firm contact with the lower surface of the web 2! of the slide. The opening 32 enables longitudinal movement of the slide along the bracket 2 the desired distance.

according to Herbert Gleitz Patent 2,351,951,

is shown overhanging the lower outstanding flange portion 38 of the whorl.

The slide 20 is normally held in the position apart top portions ofa spindle rail, leveling screw means on the channel selectively operable in contact with other top portions of such spindle rail to render either flange active as a fixed fulcrum, and means depending from the bracket for securing the bracket to the spindle rail in leveled position. 3. A mounting bracket device for a textile mill .spindle assembly, said device comprising a horiissued June 20, 1944, owned by the assignee here- 10' of. A pivoted whorl hook 31 on the flange-28 zontal metal bracket member of channel form with downwardly turned flanges, a pair of inthereof shown in Fig. 1 by a coiled tension spring 40 to a flat D-shaped loop 40 of which may be connected to an upstanding apertured ear 4! formed as a narrow central extension ofthe web 6' of the bracket channel. The opposite end of hook 42 on a clip device 43 fastened to the slide as by welding. An upturned end 44 of the clip extends into locking association with a notch or other locking shoulder formation as at 45, Figs. 1 and 2, in the flange 28 of the bolster case. The 25 lock provided by the spring-retaining clip holds the bolster case against turning on its vertical axis when the nuts 30 and 33 are being manipulated in mounting the bolster case on the spinverted L-shaped bracket members with their vertical. portions secured together back-to-back and their topv portions. extending oppositely of each other and nested between the channel flanges and a slide on the horizontal bracket member for supporting the spindle assembly.

4. In a mounting device for a textile mill spindle. assembly having a blade-supporting the spring (D-shaped loop 40'') is secured to a bolster case provided with a supporting flange, the flangehaving a shoulder, an apertured slide 0 plate arranged toreceivea lower portion of the dle slide 20 or during removal of worn out spin- 30 dle assemblies therefrom.

To operate the slide 20, as from the position (Fig. 2) in which the whorl 36 is in contact with the driving band B into a non-driving forwardly disposed position of the spindle (not shown), an

upstanding handle 50 (Figs. 1. 2, and 3) is provided on the outer end of the slide. The handle is pivoted on a horizontal pin 5| supported in a U-shaped bracket 52 secured as by welding to the top of the slide, centrally thereof. A depending hook formation 53 of the handle serves as a latch pawl, as illustrated diagrammatically at 53x Fig. 2, by latching engagement with the forward edge 54 of the web of the bracket channel 6. The adjacent forward margin of the slide channel web 2! has an open notch 55 large enough to clear the latch and allow it to drop into the indicated latching position of its own weight or as a function of forward pull by the operator on the upstanding handle 50. The latch is easily released by an upward thrust on the handle 50, allowing the spring to return the slide to spindle driving position after dofiing and donning of bobbins.

We claim:

1. A mounting bracket device for a textile mill spindle assembly of the class described, said device comprising a substantially horizontal channel with downwardly turned flanges, a slide member guided for horizontal movement on the channel partly by said flanges, said slide member being arranged to support the spindle assembly for movement toward and away from a spindle-driving means, a substantially vertical leg rigid with the horizontal channel, means cooperating with a pair of downwardly turned marginal flanges positioned for contact with respective spaced bolster case with the flange thereof in supported iposition on-the slide plate, a supporting bracket for the slide plate on which the. slide plate is guided for movement of a whorl portion of the blade into and out of driving relationship to a blade-driving band, and an upstanding lug on the slide plate engaging the shoulder on the bolster flange in a manner to prevent turning of the bolster case.

5. A mounting for a textile mill spindle assembly including a bolster, and a spindle blade and whorl supported thereby, said mounting comprising a bracket adapted to be supported in substantially horizontal position on a spinning or twisting machine frame, a slide member on the bracket arranged to support the bolster for bodily movement of the spindle whorl toward and away from a driving band of the machine, tension spring means connecting the bracket and slide to hold the whorl normally in driving contact with the driving band, said means including a supporting clip on the slide member for one end of the spring, said clip having a bolster locking portion extending into engaging relation to a keying shoulder of the bolster to hold the latter against turning on the slide member.

6. A mounting bracket device for a textile mill spindle assembly, said device comprising a generally horizontal elongated bolster plate, a rigid support for the plate attachable to a spindle rail and comprising a pair of metal angles with vertical flanges secured rigidly together back-toback and with horizontal flanges extending beneath and secured rigidly to the bolster plate, a slide surmounting the bolster plate and guidably attached thereto for rectilinear movement, a spindle assembly carried by the slide and extending therethrough, the bolster plate having an opening therethrough loosely receiving a portion of the spindle assembly which projects downwardly from the slide.

'7. A mounting for a textile mill spindle comprising a bracket adapted to be supported in substantially horizontal position on a spinning or twisting machine frame, a slide member on the bracket arranged to support a spindle assembly for bodily movement thereof toward and away from a driving band of the machine, means tending to move the slide to cause driving engagement of the spindle and bend, a releasable latch pivotally mounted on the slide member on a horizontal axis and having an arm portion operable as a handle for enabling manual movement of the 

